Antibiotics as treatment for infectious diseases were cited as the greatest advance in modern medicine by doctors in a survey sponsored by Miles Inc. Pharmaceutical Division.

Quinolones, a new class of antibiotics, was chosen among the leading advances in antibiotics within the last five years. Of those physicians familiar with quinolones, 77 percent said these agents are extremely or highly successful in treating infectious diseases.Most primary-care doctors said infectious disease management was the most successful area of medicine in developing cures, with antibiotic therapy cited as the reason for the success. Cardiovascular disease was named second, followed by non-infectious gastrointestinal diseases.